Probing properties of the magnetospheric hot plasma distribution by whistler mode wave injection at multiple frequencies: Evidence of spatial as well as temporal wave growth

1997 ◽  
Vol 102 (A7) ◽  
pp. 14355-14362 ◽  
Author(s):  
D. L. Carpenter ◽  
Vikas S. Sonwalkar ◽  
R. A. Helliwell ◽  
M. Walt ◽  
U. S. Inan ◽  
...  
Keyword(s):  
Whistler Mode ◽  
Wave Growth ◽  
Mode Wave ◽  
Hot Plasma ◽  
Plasma Distribution ◽  
Whistler Mode Wave ◽  
Multiple Frequencies

Rapid whistler-mode wave growth resulting from frequency-time curvature

1990 ◽  
Vol 17 (5) ◽  
pp. 599-602 ◽  
Author(s):  
R. A. Helliwell ◽  
T. Mielke ◽  
U. S. Inan
Keyword(s):  
Whistler Mode ◽  
Wave Growth ◽  
Mode Wave ◽  
Whistler Mode Wave

scholarly journals Ultralow-frequency modulation of whistler-mode wave growth

2011 ◽  
Vol 116 (A10) ◽  
pp. n/a-n/a ◽  
Author(s):  
C. E. J. Watt ◽  
A. W. Degeling ◽  
R. Rankin ◽  
K. R. Murphy ◽  
I. J. Rae ◽  
...  
Keyword(s):  
Frequency Modulation ◽  
Whistler Mode ◽  
Wave Growth ◽  
Ultralow Frequency ◽  
Mode Wave ◽  
Whistler Mode Wave

scholarly journals Whistler mode wave growth and propagation in the prenoon magnetosphere

2012 ◽  
Vol 117 (A6) ◽  
pp. n/a-n/a ◽  
Author(s):  
C. E. J. Watt ◽  
R. Rankin ◽  
A. W. Degeling
Keyword(s):  
Whistler Mode ◽  
Wave Growth ◽  
Mode Wave ◽  
Whistler Mode Wave

scholarly journals Nonlinear wave growth theory of whistler-mode chorus and hiss emissions in the magnetosphere

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Yoshiharu Omura
Keyword(s):  
Growth Rate ◽  
Nonlinear Wave ◽  
Wave Amplitude ◽  
Linear Growth Rate ◽  
Whistler Mode ◽  
Energetic Electrons ◽  
Wave Growth ◽  
Mode Wave ◽  
Whistler Mode Wave ◽  
Electron Holes

AbstractNonlinear processes associated with the generation process of whistler-mode chorus emissions are summarized. The nonlinear dynamics of energetic electrons interacting with a coherent whistler-mode wave and the formation of electromagnetic electron holes or hills in the velocity phase space are described. The condition for resonant electrons to be free from the anomalous trapping at low pitch angles is obtained. In the presence of the inhomogeneity due to the frequency variation and the gradient of the magnetic field, the electron holes or hills result in resonant currents generating rising-tone emissions or falling-tone emissions, respectively. After formation of a coherent wave at a frequency of the maximum linear growth rate, triggering of the nonlinear wave growth takes place when the wave amplitude is above the threshold amplitude. The wave grows to a level close to the optimum wave amplitude as an absolute instability near the magnetic equator. The nonlinear growth rate at a position away from the equator is derived for a subtracted Maxwellian momentum distribution function with correction to the formulas in the past publications. The triggering process is repeated sequentially at progressively higher frequencies in the case of a rising-tone emission, generating subpackets forming a chorus element. With a higher plasma density as in the plasmasphere, the triggering of subpackets takes place concurrently over a wide range of frequency forming discrete hiss elements with varying frequencies. The mechanism of nonlinear wave damping due to quasi-parallel propagation from the equator is presented, which results in the formation of a gap at half the electron cyclotron frequency, separating a long rising-tone chorus emission into the upper-band and lower-band chorus emissions. The theoretical formulation of an oblique whistler mode wave and its interaction with energetic electrons at the n-th resonance is also presented along with derivation of the inhomogeneity factor.

Magnetic field pulses produced via whistler mode wave decay in the ionosphere

1997 ◽  
Vol 4 (12) ◽  
pp. 4388-4393 ◽  
Author(s):  
Vyacheslav Yukhimuk ◽  
Robert Roussel-Dupre
Keyword(s):  
Magnetic Field ◽  
Whistler Mode ◽  
Mode Wave ◽  
Wave Decay ◽  
Whistler Mode Wave

Whistler-mode wave generation around interplanetary shocks in and out of the ecliptic plane

1995 ◽  
Vol 22 (23) ◽  
pp. 3425-3428 ◽  
Author(s):  
F. Pierre ◽  
J. Solomon ◽  
N. Cornilleau-Wehrlin ◽  
P. Canu ◽  
E. E. Scime ◽  
...  
Keyword(s):  
Ecliptic Plane ◽  
Wave Generation ◽  
Interplanetary Shocks ◽  
Whistler Mode ◽  
Mode Wave ◽  
Whistler Mode Wave
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